Air Fuel Sensor (Bank 1 Sensor 1) Circuit Low Input (Lean Shift) *

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Trouble Ticket Help Requests for DTC P0131

Help Request

Posted

1996 Saab 900 SE 2.5L MIL Lamp onVIN: YS3DF78V9TP0131: O2 circuit low voltage B1S1. Need help with this car. Keeps setting O2 sensor codes. If
the codes are cleared they will return after driving the
car. Don't have a SAAB scan tool so can only look at OBD II
data. The data shows 0 volts for all the O2 sensors and
does not change. LOOP status...

1996 Saab 900 SE 2.5L MIL Lamp onVIN: YS3DF78V9TP0131: O2 circuit low voltage B1S1. Need help with this car. Keeps setting O2 sensor codes. If
the codes are cleared they will return after driving the
car. Don't have a SAAB scan tool so can only look at OBD II
data. The data shows 0 volts for all the O2 sensors and
does not change. LOOP status...